Horton

Re: pgsql: Faster expression evaluation and targetlist projection.

Michael Paquier <michael.paquier@gmail.com>

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From: Michael Paquier <michael.paquier@gmail.com>
To: David Rowley <david.rowley@2ndquadrant.com>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>, Andres Freund <andres@anarazel.de>, pgsql-committers <pgsql-committers@postgresql.org>
Date: 2017-03-25T23:53:50Z
Lists: pgsql-hackers 
On Sun, Mar 26, 2017 at 7:58 AM, David Rowley
<david.rowley@2ndquadrant.com> wrote:
> On 26 March 2017 at 09:55, Thomas Munro <thomas.munro@enterprisedb.com> wrote:
>> On Sun, Mar 26, 2017 at 11:11 AM, Andres Freund <andres@anarazel.de> wrote:
>>> Faster expression evaluation and targetlist projection.
>>>
>>> This replaces the old, recursive tree-walk based evaluation, with
>>> non-recursive, opcode dispatch based, expression evaluation.
>>> Projection is now implemented as part of expression evaluation.
>>>
>>> This both leads to significant performance improvements, and makes
>>> future just-in-time compilation of expressions easier.
>>
>> This is a huge achievement.  Congratulations!
>
> Agreed. Congratulations!

Hurray. Congratulations.
-- 
Michael

Commits

  1. Blindly attempt to fix sepgsql tests.

  2. Faster expression evaluation and targetlist projection.